Proximity alarm system and method of operating same

Abstract

This invention relates to a proximity alarm system for a worker operating in the vicinity of a moving machine and a method of operating such a system. The proximity alarm system comprises a machine unit for mounting on the moving machine and a worker unit configured to be carried about the person of the worker. The machine unit comprises a boundary field generator for generating an electric field that extends outwardly from the machine. The worker unit comprises an electric field pick-up sensor for detection of the electric field and a worker alarm unit comprising, for example, an audible alarm. The worker alarm unit is actuated in response to the electric field pick-up sensor detecting the electric field, thereby alerting the worker to the proximity of the moving machine.

Description

FIELD OF THE INVENTION[0001]This invention relates to a proximity alarm system for a worker operating in the vicinity of a moving machine and a method of operating such a proximity alarm system.BACKGROUND OF THE INVENTION[0002]Working in the vicinity of moving machines such as excavators, earth moving machinery and earth moving trucks can be very dangerous. A momentary lapse in concentration can result in a life-changing or even life-ending accident. Unfortunately, it is all too common for a worker to inadvertently wander into the path of an approaching moving machine or to encroach into the working area of an excavator arm or a back actor, often with disastrous consequences. Of particular concern are those areas not in the machine operator's line of sight. In 2010, 60% of all construction work related deaths in Ireland involved vehicles.[0003]Various measures have been proposed to address the dangers of working in the vicinity of moving machines. Heretofore, these measures have foc...

AI Technical Summary

Benefits of technology

The invention is a proximity alarm system for workers who are close to a moving machine. The system includes a worker unit communications module that can send a report of the incident to a remote location or alert another worker of the danger through an alert. This helps to avoid accidents and ensures safety. The system also allows for remote configuration of the worker unit.

Problems solved by technology

Working in the vicinity of moving machines such as excavators, earth moving machinery and earth moving trucks can be very dangerous.

A momentary lapse in concentration can result in a life-changing or even life-ending accident.

Unfortunately, it is all too common for a worker to inadvertently wander into the path of an approaching moving machine or to encroach into the working area of an excavator arm or a back actor, often with disastrous consequences.

However, accidents are still far too frequent.

Although these measures may make the worker more visible to the operators of the moving machines and therefore less likely to be harmed due to operator error, they do not in any way help to reduce the likelihood of the worker themselves wandering into the path of an approaching moving machine.

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